GoPro Hero 7 Black Battery Drain

I just own my 1st Gopro for social media project recently, unfortunately I facing the below issues on my new GoPro Hero 7 Black (already updated latest firmware before these issues happened)

Issue 1:1st time plug in charging the GoPro, the LED blinking few times then no more. Turn off and turn on again the LED just permanently light on. Not yet fully charged (just 71%) the LED turned off. Turn on Gopro and check it’s showed still charging and LED resume on again.

Issue 2:After fully charged from 5% to 100% (about 2.5hrs), then using the GoPro to take few photos and 2-3 4k30f videos, the battery dropped drastically. Even the GoPro in screen saver mode, the battery dropped 5% in about 6min (subject with turn off voice command, gps, WiFi and reduce brightness).

Issue 3:When viewing the photos and videos, suddenly the GoPro freezing. I tried to hold the mode button about 10sec then it only unfreeze and restart again.

Issue 4:Tried to take 1080k 60f video, the battery dropped about 14% for 11minutes video.(Using Sandisk Extreme 32G which the part number like in Gopro recommend list, WiFi+GPS+Voice Command+Protune off, brightness 26%)